SSAC · SPACSphere Acquisition Corp.

$10.07 +0.00 (+0.00%) At close · Aug 26

Market Cap

$242.16M

24.05M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Quarter:

Holders: 48

Total Value: $159,871,307

Total Shares: 33,253,096

Institutional Ownership Trend

2 quarters

Holder Concentration

Across 48 13F filers · Δ vs Mar 31, 2026

Top Holder

9.5%

−0.2 pts

Top 5

42.7%

−0.7 pts

Top 10

65.6%

+5.2 pts

HHI

550

Broadly held+40

Quarterly Activity

vs Mar 31, 2026

New

Increased

Decreased

Sold Out

Unchanged

Holder count: -2

Institutional value: +3.3%

Shares held: +9.9%

Top Buyers

vs Mar 31, 2026

Institution	Added	Now Holds
Mid WOLVERINE ASSET MANAGEMENT LLC	+1,176,849	2,339,378
Mid Westchester Capital Management, LLC	+749,998	1,249,998
Small Crossingbridge Advisors, LLC	+745,112	845,112
Mid ARISTEIA CAPITAL, L.L.C.	+603,599	1,393,788
Mid SONA ASSET MANAGEMENT (US) LLC	+525,000	875,000

Top Sellers

vs Mar 31, 2026

Institution	Sold	Now Holds
Small METEORA CAPITAL, LLC	−1,231,254	498,213
Mid HIGHBRIDGE CAPITAL MANAGEMENT LLC	−798,421	1,700,000
Small Harraden Circle Investments, LLC	−789,515	2,089,230
Small Lineage Point Capital LP	−687,000	763,000
Mid MANGROVE PARTNERS IM, LLC	−225,000	900,000

Top New Positions

vs Mar 31, 2026

Institution	Acquired	Value (USD)
Mid Virtu Financial LLC	75,337	$327,503
Small Tuttle Capital Management, LLC	20,000	$199,600
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP	10,241	$102,205
Small StoneX Group Inc.	451,061	$0
Mid Shay Capital LLC	742,640	$0

Top Sold-Out Positions

vs Mar 31, 2026

Institution	Previously Held	Last Value (USD)
Small RLH Capital LLC	250,000	$2,517,500
Mid Quarry LP	175,000	$1,762,250
Large Parallax Volatility Advisers, L.P.	161,551	$1,599,354
Small ABC ARBITRAGE SA	100,000	$396,000
Large Calamos Advisors LLC	15,000	$151,050

Filter: New 6 Increased 18 Reduced 12 Sold out 8 Unchanged 12

Showing 100 of 100

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

Yakira Capital Management, Inc. SSACU

$15,161,850

9.48%

1,485,000

Polar Asset Management Partners Inc.

$14,870,200

9.30%

1,490,000

HIGHBRIDGE CAPITAL MANAGEMENT LLC

$14,221,500

8.90%

1,425,000

Karpus Management, Inc.

$12,463,772

7.80%

1,248,875

WOLVERINE ASSET MANAGEMENT LLC

$11,609,035

7.26%

1,163,230

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Wolverine Holdings, LLC	1,163,230	$11,609,035	100.0%	Defined

MIZUHO SECURITIES USA LLC

$10,105,418

6.32%

1,012,567

Crossingbridge Advisors, LLC

$8,434,217

5.28%

845,112

BERKLEY W R CORP

$7,674,450

4.80%

768,983

D. E. Shaw & Co., Inc.

$5,159,660

3.23%

517,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
D. E. SHAW & CO, L.P.	517,000	$5,159,660	100.0%	Defined

GLAZER CAPITAL, LLC

$5,085,698

3.18%

509,589

Westchester Capital Management, LLC

$4,989,999

3.12%

500,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
WESTCHESTER CAPITAL PARTNERS, LLC	4,256	$42,474	0.9%	Sole
Virtus Investment Advisers, LLC	453,496	$4,525,890	90.7%	Other
Held directly	42,248	$421,635	8.4%	Sole

MANGROVE PARTNERS IM, LLC

$4,491,000

2.81%

450,000

Linden Advisors LP

$4,491,000

2.81%

450,000

ARISTEIA CAPITAL, L.L.C.

$4,015,952

2.51%

402,400

SONA ASSET MANAGEMENT (US) LLC

$3,493,000

2.18%

350,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SONA ASSET MANAGEMENT (UK) LLP	350,000	$3,493,000	100.0%	Other

RIVERNORTH CAPITAL MANAGEMENT, LLC

$3,493,000

2.18%

350,000

TORONTO DOMINION BANK SSACU

$3,011,439

1.88%

294,950

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
TD SECURITIES (USA) LLC	294,950	$3,011,439	100.0%	Defined

Magnetar Financial LLC

$2,994,000

1.87%

300,000

Shaolin Capital Management LLC

$2,716,246

1.70%

272,169

TWO SIGMA INVESTMENTS, LP

$2,713,312

1.70%

271,875

Clear Street Group Inc.

$2,489,051

1.56%

249,404

BNP PARIBAS ARBITRAGE, SA

$2,288,972

1.43%

229,356

WHITEBOX ADVISORS LLC

$2,116,189

1.32%

212,043

Hudson Bay Capital Management LP

$1,996,000

1.25%

200,000

Ghisallo Capital Management LLC

$1,996,000

1.25%

200,000

AQR Arbitrage LLC

$1,726,460

1.08%

172,992

Periscope Capital Inc.

$1,247,500

0.78%

125,000

TORONTO DOMINION BANK

$998,000

0.62%

100,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
TD SECURITIES (USA) LLC	100,000	$998,000	100.0%	Defined

Radcliffe Capital Management, L.P.

$748,500

0.47%

75,000

MMCAP International Inc. SPC

$499,000

0.31%

50,000

Clear Street Group Inc. SSACU

$347,180

0.22%

34,004

Virtu Financial LLC

$327,503

0.20%

32,816

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Virtu Americas LLC	32,816	$327,503	100.0%	Defined

Kepos Capital LP

$299,400

0.19%

30,000

GEODE CAPITAL MANAGEMENT, LLC

$295,687

0.18%

29,628

TrueMark Investments, LLC

$254,869

0.16%

25,538

HEIGHTS CAPITAL MANAGEMENT, INC

$249,500

0.16%

25,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
CVI Investments, Inc.	25,000	$249,500	100.0%	Other

Tuttle Capital Management, LLC

$199,600

0.12%

20,000

Schonfeld Strategic Advisors LLC

$163,242

0.10%

16,357

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$102,205

0.06%

10,241

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
G1 EXECUTION SERVICES, LLC	10,241	$102,205	100.0%	Other

JPMORGAN CHASE & CO SSACU

$102,100

0.06%

10,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
J.P. Morgan Securities LLC	10,000	$102,100	100.0%	Defined

L1 Global Manager Pty Ltd

$99,800

0.06%

10,000

GLAZER CAPITAL, LLC SSACU

$83,967

0.05%

8,224

UBS Group AG SSACU

$25,096

0.02%

2,458

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS Securities LLC	2,458	$25,096	100.0%	Defined

UBS Group AG

$20,419

0.01%

2,046

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS Securities LLC	2,046	$20,419	100.0%	Defined

MORGAN STANLEY

$319

0.00%

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
MORGAN STANLEY CAPITAL SERVICES, LLC	32	$319	100.0%	Defined

Harraden Circle Investments, LLC SSACR

—

2,089,230

SONA ASSET MANAGEMENT (US) LLC SSACR

—

350,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SONA ASSET MANAGEMENT (UK) LLP	350,000	$0	—	Other

Magnetar Financial LLC SSACW

—

150,000

BOOTHBAY FUND MANAGEMENT, LLC SSACR

—

50,000

Linden Advisors LP SSACW

—

225,000

WHITEBOX ADVISORS LLC SSACR

—

212,043

Polar Asset Management Partners Inc. SSACR

—

1,514,800

Periscope Capital Inc. SSACW

—

47,500

AQR Arbitrage LLC SSACW

—

87,035

Hudson Bay Capital Management LP SSACR

—

100,000

Periscope Capital Inc. SSACR

—

95,000

MMCAP International Inc. SPC SSACR

—

50,000

MANGROVE PARTNERS IM, LLC SSACR

—

450,000

ARISTEIA CAPITAL, L.L.C. SSACW

—

588,988

Schonfeld Strategic Advisors LLC SSACR

—

30,146

Westchester Capital Management, LLC SSACW

—

249,998

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
WESTCHESTER CAPITAL PARTNERS, LLC	2,128	$0	—	Sole
Virtus Investment Advisers, LLC	226,747	$0	—	Other
Held directly	21,123	$0	—	Sole

TORONTO DOMINION BANK SSACR

—

772,060

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
TD SECURITIES (USA) LLC	772,060	$0	—	Defined

BNP PARIBAS ARBITRAGE, SA SSACR

—

229,356

Polar Asset Management Partners Inc. SSACW

—

769,129

BERKLEY W R CORP SSACW

—

148,000

HIGHBRIDGE CAPITAL MANAGEMENT LLC SSACR

—

275,000

ARISTEIA CAPITAL, L.L.C. SSACR

—

402,400

RIVERNORTH CAPITAL MANAGEMENT, LLC SSACW

—

175,000

RIVERNORTH CAPITAL MANAGEMENT, LLC SSACR

—

350,000

TORONTO DOMINION BANK SSACW

—

48,300

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
TD SECURITIES (USA) LLC	48,300	$0	—	Defined

WOLVERINE ASSET MANAGEMENT LLC SSACW

—

351,782

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Wolverine Holdings, LLC	351,782	$0	—	Defined

Westchester Capital Management, LLC SSACR

—

500,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
WESTCHESTER CAPITAL PARTNERS, LLC	4,256	$0	—	Sole
Virtus Investment Advisers, LLC	453,496	$0	—	Other
Held directly	42,248	$0	—	Sole

Ghisallo Capital Management LLC SSACR

—

200,000

WHITEBOX ADVISORS LLC SSACW

—

106,021

Shaolin Capital Management LLC SSACW

—

450,569

Lineage Point Capital LP SSACR

—

515,000

Lineage Point Capital LP SSACW

—

248,000

Kepos Capital LP SSACW

—

14,400

SONA ASSET MANAGEMENT (US) LLC SSACW

—

175,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SONA ASSET MANAGEMENT (UK) LLP	175,000	$0	—	Other

Linden Advisors LP SSACR

—

450,000

Radcliffe Capital Management, L.P. SSACR

—

75,000

MMCAP International Inc. SPC SSACW

—

25,000

Magnetar Financial LLC SSACR

—

300,000

AQR Arbitrage LLC SSACR

—

174,070

GLAZER CAPITAL, LLC SSACR

—

295,113

WOLVERINE ASSET MANAGEMENT LLC SSACR

—

824,366

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Wolverine Holdings, LLC	824,366	$0	—	Defined

Radcliffe Capital Management, L.P. SSACW

—

37,499

Clear Street Group Inc. SSACR

—

137,000

Clear Street Group Inc. SSACW

—

313,000

METEORA CAPITAL, LLC SSACW

—

173,231

METEORA CAPITAL, LLC SSACR

—

324,982

Shaolin Capital Management LLC SSACR

—

378,623

Centiva Capital, LP SSACR

—

200,000

BNP PARIBAS ARBITRAGE, SA SSACW

—

114,678

Virtu Financial LLC SSACW

—

42,521

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Virtu Americas LLC	42,521	$0	—	Defined

HEIGHTS CAPITAL MANAGEMENT, INC SSACR

—

21,310

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
CVI Investments, Inc.	21,310	$0	—	Other

Kepos Capital LP SSACR

—

28,800

Shay Capital LLC SSACR

—

742,640

GLAZER CAPITAL, LLC SSACW

—

147,556

StoneX Group Inc. SSACR

—

451,061

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
STONEX FINANCIAL INC.	451,061	$0	—	Defined

Key facts CIK 2081300 CUSIP G8T088109 13F (30d) 47 filings 47 filers Visit website Investor relations